* {
    padding: 0;
    margin: 0;
    box-sizing: border-box;
}

body {
    font-family: 'Noto Sans KR', sans-serif;
    font-size: 16px;
    line-height: 1.5;
    color: #333;
}

.container {
    max-width: 760px;
    margin: 0 auto;
}

.text-red {
    color: #FF0000;
}

.text-blue {
    color: #1F71EB;
}

.guide-title {
    font-size: 30px;
    font-weight: 600;
    line-height: 1.448;
    color: #333;
    text-align: center;
    margin-bottom: 20px;
}

/* 탭 버튼 컨테이너 */
.tab-buttons {
    display: flex;
    justify-content: stretch;
    align-items: stretch;
    width: 100%;
    gap: 0;
}

/* 탭 버튼 */
.tab-button {
    flex: 1;
    display: flex;
    justify-content: center;
    align-items: center;
    padding: 11px 36px;
    border: none;
    background-color: #EFEFEF;
    border-top: 1px solid #D3D3D3;
    border-bottom: 1px solid #D3D3D3;
    border-left: 1px solid #D3D3D3;
    cursor: pointer;
    font-family: 'Noto Sans KR', sans-serif;
    font-weight: 600;
    font-size: 14px;
    line-height: 1.448;
    color: #666666;
    transition: all 0.3s ease;
}

.step-content {
    margin-top: 50px;
}

.step-content img {
    margin-bottom: 16px;
}

.step-case-title {
    margin-bottom: 16px;
    color: #0A4FAC;
    font-size: 18px;
    font-weight: 600;
    text-align: center;
}
.step-text {
    color: #333;
    font-size: 15px;
    font-style: normal;
    font-weight: 500;
    text-align: center;
}

.step-number {
    display: inline-flex;
    justify-content: center;
    align-items: center;
    width: 20px;
    height: 20px;
    color: #fff;
    border-radius: 40px;
    font-size: 12px;
    background: #0A4FAC;
    margin-right: 6px;
}

/* 첫 번째 탭 버튼 */
.tab-button:first-child {
    border-left: 1px solid #D3D3D3;
}

/* 마지막 탭 버튼 */
.tab-button:last-child {
    border-right: 1px solid #D3D3D3;
}

/* 활성 탭 버튼 */
.tab-button.active {
    background-color: #0A4FAC;
    color: #FFFFFF;
    border-color: #0A4FAC;
    z-index: 1;
    position: relative;
}

/* 탭 콘텐츠 컨테이너 */
.tab-content {
    width: 100%;
}

/* 탭 패널 */
.tab-pane {
    display: none;
    padding: 20px 0;
}

/* 활성 탭 패널 */
.tab-pane.active {
    display: block;
}